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Finding the Fourth Proportional to 636,690.96, 878,615.01 and 350,210.97

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Solution

The fourth proportional to 636,690.96, 878,615.01 and 350,210.97 is: 483,280.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,690.96 : 878,615.01 = 350,210.97 : x
  2. Step 2: Convert to fraction form
    636,690.96/878,615.01 = 350,210.97/x
  3. Step 3: Cross multiply
    636,690.96x = 878,615.01 × 350,210.97
  4. Step 4: Simplify right side
    636,690.96x = 307,700,614,908.66
  5. Step 5: Solve for x
    x = 307,700,614,908.66/636,690.96
  6. Step 6: Final answer
    x = 483,280.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.